Capstone
Cybersecurity
Network Intrusion Detection System
Machine-learning anomaly detection over live network traffic
- Python
- Scapy
- XGBoost
- Kafka
- +2
₹5,499₹9,499
4.9/97 reviews
Cybersecurity · Mini Project
Two-Factor Authentication Service with TOTP
TOTP enrolment via QR, backup codes and rate-limited verification
1-2 weeks build
Overview
A drop-in second-factor service that implements the RFC 6238 TOTP standard: users enrol by scanning a QR code into any authenticator app, then confirm a six-digit code on each login. Single-use backup codes cover a lost phone, and Redis-backed rate limiting blocks brute-force guessing of the code.
What makes it stand up
- 01Standards-compliant TOTP that works with Google and Microsoft Authenticator
- 02QR-code enrolment with a manual secret fallback
- 03Hashed single-use backup codes for account recovery
- 04Redis rate limiting and lockout on repeated failures
- 05Clean REST API you can bolt onto any existing login
Module breakdown
- 01
Secret setup
Generates a per-user secret and renders the enrolment QR.
- 02
Verification
Validates codes within a time window with clock-skew tolerance.
- 03
Backup codes
Issues, hashes and consumes one-time recovery codes.
- 04
Rate limiting
Counts failures per user and enforces temporary lockouts.
- 05
Integration
REST endpoints and a React enrolment and challenge flow.
After this, you will be able to
- Explain how TOTP derives a code from a shared secret and time
- Defend the rate-limiting and backup-code design choices
- Demo enrolment and login with a real authenticator app
Technology stack
- Node.js
- TypeScript
- React
- PostgreSQL
- Redis
- Level
- Mini Project
- Domain
- Cybersecurity
- Build time
- 1-2 weeks
- Difficulty
You receive
- Complete, commented source code
- 60-90 page project report (IEEE format)
- Editable presentation deck
- Architecture, ER and UML diagrams
- Local setup and deployment guide
- Sample dataset or seed data
- Viva question bank with answers
- One 45-minute walkthrough call
- 30 days of doubt-clearing support